Add OMG WASM tracing debug code
<rdar://problem/107394100>
Pull request: https://github.com/apple/WebKit/pull/507
Pull request: https://github.com/WebKit/WebKit/pull/12148
Committed 262784@main (37b14a877442): <https://commits.webkit.org/262784@main> Reviewed commits have been landed. Closing PR #12148 and removing active labels.